EP 4067463 B1 20230906 - ENGINE OILS WITH IMPROVED VISCOMETRIC PERFORMANCE
Title (en)
ENGINE OILS WITH IMPROVED VISCOMETRIC PERFORMANCE
Title (de)
MOTORÖLE MIT VERBESSERTER VISKOSIMETRISCHER LEISTUNG
Title (fr)
HUILES MOTEUR PRÉSENTANT UNE MEILLEURE PERFORMANCE VISCOMÉTRIQUE
Publication
Application
Priority
US 202117217286 A 20210330
Abstract (en)
[origin: EP4067463A1] A multi-grade lubricating oil including a (meth)acrylate polymer with at least two distinct molecular weight arms and a blend of heavier and lighter base oils with increased amounts of the heavier base oil to achieve SAE grade performance. The compositions herein achieve SAE certifications as lower CCS viscosities at target kinematic viscosities for multi-grade oils.
IPC 8 full level
C10M 169/04 (2006.01); C10N 20/02 (2006.01); C10N 20/04 (2006.01); C10N 30/02 (2006.01); C10N 30/08 (2006.01); C10N 40/25 (2006.01); C10N 70/00 (2006.01)
CPC (source: CN EP US)
C10M 145/14 (2013.01 - US); C10M 149/22 (2013.01 - US); C10M 157/04 (2013.01 - US); C10M 169/04 (2013.01 - EP); C10M 169/041 (2013.01 - CN US); C10M 169/044 (2013.01 - CN); C10M 177/00 (2013.01 - CN); C10M 2203/003 (2013.01 - US); C10M 2203/1025 (2013.01 - CN EP); C10M 2205/02 (2013.01 - EP); C10M 2205/0285 (2013.01 - CN EP); C10M 2209/08 (2013.01 - CN); C10M 2209/084 (2013.01 - EP US); C10M 2215/08 (2013.01 - CN); C10M 2215/086 (2013.01 - CN); C10M 2215/28 (2013.01 - EP); C10M 2217/046 (2013.01 - US); C10N 2020/02 (2013.01 - CN EP); C10N 2020/04 (2013.01 - EP US); C10N 2020/071 (2020.05 - US); C10N 2030/02 (2013.01 - CN EP); C10N 2030/04 (2013.01 - US); C10N 2030/06 (2013.01 - CN); C10N 2030/08 (2013.01 - EP); C10N 2040/02 (2013.01 - CN); C10N 2040/25 (2013.01 - CN EP); C10N 2070/00 (2013.01 - EP)
C-Set (source: CN EP)
CN
EP
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 4067463 A1 20221005; EP 4067463 B1 20230906; EP 4067463 C0 20230906; CA 3153447 A1 20220930; CN 115141672 A 20221004; JP 2022155556 A 20221013; US 11634655 B2 20230425; US 2022315857 A1 20221006
DOCDB simple family (application)
EP 22164898 A 20220329; CA 3153447 A 20220328; CN 202210322099 A 20220330; JP 2022053586 A 20220329; US 202117217286 A 20210330